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/*
* Copyright (C) 2020 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "SimpleRange.h"
#include "CharacterData.h"
#include "Range.h"
namespace WebCore {
SimpleRange::SimpleRange(const BoundaryPoint& start, const BoundaryPoint& end)
: start(start)
, end(end)
{
}
SimpleRange::SimpleRange(BoundaryPoint&& start, BoundaryPoint&& end)
: start(WTFMove(start))
, end(WTFMove(end))
{
}
SimpleRange::SimpleRange(const Range& other)
: start(other.startContainer(), other.startOffset())
, end(other.endContainer(), other.endOffset())
{
}
bool operator==(const SimpleRange& a, const SimpleRange& b)
{
return a.start == b.start && a.end == b.end;
}
// FIXME: Node::isCharacterData should use an algorithm like this, since I'm assuming it's faster than the isCharacterDataNode virtual call in most cases.
static bool fastIsCharacterData(const Node& node)
{
return !node.isContainerNode() && (node.isTextNode() || node.isCharacterDataNode());
}
// FIXME: This should be Node::length since the DOM specification calls this a node's length.
static unsigned length(const Node& node)
{
if (fastIsCharacterData(node))
return downcast<CharacterData>(node).length();
return node.countChildNodes();
}
SimpleRange makeRangeSelectingNodeContents(Node& node)
{
return { { node, 0 }, { node, length(node) } };
}
}